A Gardeners Forum Forums General Discussion The Food Garden Forum Vegetable Gardening mysterious holes in my kohlrabi leaves

my kohlrabi leaves have small holes appearing all over them, more and more each day, but I can't detect any critters responsible for it. The kohlrabi are next to cabbage, which have similar leaves but that aren't filled with holes...

Can anybody tell me what's likely causing this and if there is anything I can do?

Thanks.

Its most likely a disease. It can't be cabbage worms or your cabbages would have them too! Just try treating them for diseases like you would with a cabbage since they are strongly related to cabbages, also, pick them young. overgrown kohlrabi tastes woody and just plain weird. so, pick them when the stems reach about an inch or so in diameter and keep that up until they are 2-3 inches in diameter.